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path: root/drivers/crypto/ccp/ccp-crypto-main.c
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2023-02-13crypto: ccp - Use request_complete helpersHerbert Xu
Use the request_complete helpers instead of calling the completion function directly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-12-09crypto: ccp - Set DMA alignment explicitlyHerbert Xu
This driver has been implicitly relying on kmalloc alignment to be sufficient for DMA. This may no longer be the case with upcoming arm64 changes. This patch changes it to explicitly request DMA alignment from the Crypto API. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: ccp - Remove unused struct ccp_crypto_cpuYuan Can
After commit bc3854476f36("crypto: ccp - Use a single queue for proper ordering of tfm requests"), no one use struct ccp_crypto_cpu, so remove it. Signed-off-by: Yuan Can <yuancan@huawei.com> Acked-by: John Allen <john.allen@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: ccp - Add __init/__exit annotations to module init/exit funcsruanjinjie
Add missing __init/__exit annotations to module init/exit funcs Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> Acked-by: John Allen <john.allen@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-09crypto: ccp - Use DEFINE_SPINLOCK() for spinlockTang Yizhou
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-17crypto: ccp - switch from ablkcipher to skcipherArd Biesheuvel
Commit 7a7ffe65c8c5 ("crypto: skcipher - Add top-level skcipher interface") dated 20 august 2015 introduced the new skcipher API which is supposed to replace both blkcipher and ablkcipher. While all consumers of the API have been converted long ago, some producers of the ablkcipher remain, forcing us to keep the ablkcipher support routines alive, along with the matching code to expose [a]blkciphers via the skcipher API. So switch this driver to the skcipher API, allowing us to finally drop the ablkcipher code in the near future. Reviewed-by: Gary R Hook <gary.hook@amd.com> Tested-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-08-09crypto: ccp - Log an error message when ccp-crypto fails to loadGary R Hook
If there are no CCP devices on the system, ccp-crypto will not load. Write a message to the system log clarifying the reason for the failure of the modprobe operation Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03crypto: ccp - use -ENOSPC for transient busy indicationGilad Ben-Yossef
Replace -EBUSY with -ENOSPC when reporting transient busy indication in the absence of backlog. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Reviewed-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-07-28crypto: ccp - Add support for RSA on the CCPGary R Hook
Wire up the CCP as an RSA cipher provider. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-07-28crypto: ccp - Update copyright dates for 2017.Gary R Hook
Some updates this year have not had copyright dates changed in modified files. Correct this for 2017. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-24crypto: ccp - Enable support for AES GCM on v5 CCPsGary R Hook
A version 5 device provides the primitive commands required for AES GCM. This patch adds support for en/decryption. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-24crypto: ccp - Enable 3DES function on v5 CCPsGary R Hook
Wire up support for Triple DES in ECB mode. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-10-08crypto: ccp - Replace BUG_ON with WARN_ON and a return codeTom Lendacky
Replace the usage of BUG_ON with WARN_ON and return an error. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-02-27crypto: ccp - Updates for checkpatch warnings/errorsTom Lendacky
Changes to address warnings and errors reported by the checkpatch script. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-09-24crypto: ccp - Check for CCP before registering crypto algsTom Lendacky
If the ccp is built as a built-in module, then ccp-crypto (whether built as a module or a built-in module) will be able to load and it will register its crypto algorithms. If the system does not have a CCP this will result in -ENODEV being returned whenever a command is attempted to be queued by the registered crypto algorithms. Add an API, ccp_present(), that checks for the presence of a CCP on the system. The ccp-crypto module can use this to determine if it should register it's crypto alogorithms. Cc: stable@vger.kernel.org Reported-by: Scot Doyle <lkml14@scotdoyle.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Tested-by: Scot Doyle <lkml14@scotdoyle.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-02-27crypto: ccp - Account for CCP backlog processingTom Lendacky
When the crypto layer is able to queue up a command for processing by the CCP on the initial call to ccp_crypto_enqueue_request and the CCP returns -EBUSY, then if the backlog flag is not set the command needs to be freed and not added to the active command list. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-02-27crypto: ccp - Invoke context callback when there is a backlog errorTom Lendacky
Invoke the callback routine associated with the crypto context if an error is encountered sending the command to the CCP during backlog processing. This is needed to free any resources used by the command. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-02-27crypto: ccp - Prevent a possible lost CCP command requestTom Lendacky
If a CCP command has been queued for processing at the crypto layer then, when dequeueing it for processing, the "can backlog" flag must be set so that the request isn't lost if the CCP backlog queue limit is reached. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-02-09crypto: ccp - Use a single queue for proper ordering of tfm requestsTom Lendacky
Move to a single queue to serialize requests within a tfm. When testing using IPSec with a large number of network connections the per cpu tfm queuing logic was not working properly. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-02-09crypto: ccp - Allow for selective disablement of crypto API algorithmsTom Lendacky
Introduce module parameters that allow for disabling of a crypto algorithm by not registering the algorithm with the crypto API. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-12-05crypto: ccp - crypto API interface to the CCP device driverTom Lendacky
These routines provide the support for the interface between the crypto API and the AMD CCP. This includes insuring that requests associated with a given tfm on the same cpu are processed in the order received. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>